import java.util.Scanner;


public class Tablica {

	public static void main(String[] args) {
	
		
		int a, b, c, x1, x2;
	
		float delta;
		
		a=1;
		b=7;
		c=2;
		
	    
        
		delta = (float) (Math.pow(b, 2)-4*a*c);
		x1= (int) (-b+delta)/2*a;
		x2= (int) (-b-delta)/2*a;
     	
		
         if(delta>0)
         {
        	System.out.println("Równanie ma dwa rozw¹zania x1= " + x1 + " x2= " + x2);
         
         }
         
         else
        	 
         {
        	 
        	 System.out.println("Brak rozwi¹zañ");
        	 
        	 
         }
         
		
}
	
}